Improved tike-shrinker



JOHN MAoY, oF PIN'E, OREGON.

Letters Patent No. 77,297, dated April 28, 1868.

IMPROVBD TIRE-SHRINKER.

TO' ALL WHOM IT MAY CONCERN:

Be it known that I, JOH'- MACY, of Eine, in' the .countyl of Linn, and -State of Oregon, have made and -invented a new and useful Irnprovoment in Tire-Shrinkers; and I do hereby declare that the following is a full,

clear, and oxactdeseripton the'reof, which willV enable those 'skilled in the art to make and use the same, reference being had to the aceompanying drawing, and to the letters of reference marked thereon.

This invention relates to-a neu' andlimproved device for shrinking tii'es; and it consists Vin the employment vor use of a fixed bed, provided with a figied and an adjustable flange, i n connection with a fixed 'and anadjustable clamp, all arrangcd to opcrate as herelnafter set forth, whereby tires of difl'erent'widths may bo contracted or shrunlr with the greatest facility, and in a perfect manner. I

The accompnnying drawing is a pel'spective view of niy inventlon.

A represents a rcctangulair. stock, in which a metallic bed, B, is firmly seeured. s'aid bed having a longitudinal concave upper surface,f-with a fixed flange, a, at one side, and an adjilstable flangc, a', at the opposite side, 'the flange a' beingI provided with slotted arms b, through which bolts a pass into the stock, and admit of it being adjusted nearer to orfurther from`the flange a, to suit the width of the tire to be operated-upon.

C representsa sliding plate on the stock A, which is 'operated 'by a eam-lever, D, plainly shown in the drawing. This plate C is fitted in a guide, d, andis' provided Vat each side with an uprght, E, the upper ends of said uprights being curved or bent to form hooks These uprights E extend up through guides on th'e stock A. I

/ F F represent two nprights, similar to E E, having hoolrs gg on their upper end's. The nprights F F are fixed, being drivcu in or otherwise secuted to the stock. v

G G' are two clamps, comp'osed-of a plate, h, having their upper ends fitted in shafts the ends of 'which are placed under the books e g of the uprights E E, F F, loops or handles j being fitted'in the shaft.

vThe operation is as follows: i

The plate O is drawn back from the bed B, and the clainpsGr G' removed. The tire, properly heated,- as

shown in red, is` placed (its heated portion) on the bed B; and the flange a{ adjusted so thatthe heatedportion of th'e tirewill fit snugly between the two flangesa a'. The clamps G G' are then adjus'ted in'position, the lower cdges of the plate h bearing uponthe tire, and the sliding' plate C, by actuating the cam-lever D, is moved towards the bed B, the clamips firmly clutohing the tire, and the l-aitter between the clamps is consequently'ficompressed'or upset. i I

Having thus (lescribed my invention, claim as new, and desix'e to secure by'Letters,Patent--.

The fixed bed B, provided with the fixed and adjustable clamps aia', in combination with the sliding platev I 0, actuated by the cam-level' D, and the clamps G G' fitted to the uprights E E, FF, when all said parts constructed and arranged in the manner substantially as and for the purpose -set forth.

' JOHN MACY. Witnesses:

IRWIN MAoY, JAMss WA'rKms. 

